verb · a suffix at the end of a computer file name indicating its format

这个文件的尾缀是 .pdf。

verb · to follow someone closely or act as a tail

他紧紧地尾缀在那辆轿车后面。

noun · a morpheme or ending added to the end of a word to form a derivative

在这个词根后面加上一个名词尾缀。